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[Qemu-devel] [PATCH 02/16] scsi: Increase the number of possible devices
From: |
Hannes Reinecke |
Subject: |
[Qemu-devel] [PATCH 02/16] scsi: Increase the number of possible devices |
Date: |
Thu, 18 Nov 2010 15:46:25 +0100 |
User-agent: |
Heirloom mailx 12.2 01/07/07 |
The SCSI parallel interface has a limite of 8 devices, but
not the SCSI stack in general. So we should be removing the
hard-coded limit and use MAX_SCSI_DEVS instead.
And we only need to scan those devices which are allocated
by the bus.
Signed-off-by: Hannes Reinecke <address@hidden>
---
blockdev.h | 2 +-
hw/scsi-bus.c | 2 +-
hw/scsi.h | 3 ++-
3 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/blockdev.h b/blockdev.h
index 653affc..451dc06 100644
--- a/blockdev.h
+++ b/blockdev.h
@@ -32,7 +32,7 @@ struct DriveInfo {
};
#define MAX_IDE_DEVS 2
-#define MAX_SCSI_DEVS 7
+#define MAX_SCSI_DEVS 255
DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
int drive_get_max_bus(BlockInterfaceType type);
diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c
index 5a3fd4b..74a08b7 100644
--- a/hw/scsi-bus.c
+++ b/hw/scsi-bus.c
@@ -108,7 +108,7 @@ int scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
int res = 0, unit;
loc_push_none(&loc);
- for (unit = 0; unit < MAX_SCSI_DEVS; unit++) {
+ for (unit = 0; unit < bus->ndev; unit++) {
dinfo = drive_get(IF_SCSI, bus->busnr, unit);
if (dinfo == NULL) {
continue;
diff --git a/hw/scsi.h b/hw/scsi.h
index cb06d6d..9c798ae 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -3,6 +3,7 @@
#include "qdev.h"
#include "block.h"
+#include "blockdev.h"
#include "block_int.h"
#define SCSI_CMD_BUF_SIZE 16
@@ -86,7 +87,7 @@ struct SCSIBus {
int tcq, ndev;
scsi_completionfn complete;
- SCSIDevice *devs[8];
+ SCSIDevice *devs[MAX_SCSI_DEVS];
};
void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
--
1.7.1
- [Qemu-devel] [PATCH 02/16] scsi: Increase the number of possible devices,
Hannes Reinecke <=